After hours of work, I accidentally clicked on the foliage-grass instead of the stone, and then UE crash. I will not broadly paint this topic, because those who came across this will understand how many nerves it takes away. Just wondering what methods you use to avoid this? Disable foliage - but then the whole picture will not be visible. What else?)
Now i using “smoke two cigarettes, remember mother, and do it again”
Your question is a bit vague, but when it gets to situations like this it’s best to start again in a new level. If that fails, uninstall and re-install the engine… Sorry, it’s a pain, but better than crashing all the time.